Wear-resistant protective sleeve for finned heat exchanger

The utility model discloses a wear-resistant protective sleeve for a finned heat exchanger, which comprises a support plate and a heat exchange tube, a hole is arranged on the support plate, the heat exchange tube penetrates through the hole on the support plate, a buffer lantern ring is arranged at the joint of the support plate and the heat exchange tube, and two ends of the buffer lantern ring are turned outwards. A first baffle is arranged at one end of the buffering lantern ring, a second baffle is arranged at the other end of the buffering lantern ring, and a clamping groove is formed between the first baffle and the second baffle. According to the wear-resistant protective sleeve for the finned heat exchanger, the buffer lantern ring made of silica gel is arranged at the joint of the supporting plate and the heat exchange tube, so that direct contact between the supporting plate and the heat exchange tube is avoided, and loss caused by direct friction between the supporting plate and the heat exchange